/Engine/Source/Developer/ScreenShotComparisonTools/Public/ImageComparer.h
static bool IsContrasting ( const [FColor](API\Runtime\Core\Math\FColor) & ColorA, const [FColor](API\Runtime\Core\Math\FColor) & ColorB, const [FImageTolerance](API\Developer\ScreenShotComparisonTools\FImageTolerance) & Tolerance )